Переработайте актив. залог в пассив. Помогите пожалуйста :31)They do not grow

1) They do not grow such fruit trees in cold countries

     Such fruit trees are not grown in cold countries

2) He ate the ice cream in no time

       The ice cream was eaten in no time

3) Did a famous architect build this palace?

     Was this palace built by a famous architect?

4)A lot of tourists visit this castle

       Is this castle visited by a lot of tourists?

5) He hung his coat on the hook.

        His coat was hung on the hook

6) Little Adam broke his toy car

       Little Adams car was broken